Improvement in ejectors for oil-wells



JNiTnD STATES GEORGE M. MOVBRAY, OF TITUSVILLE, PENNSYLVANIA.

IMPROVEMENT IN EJECTORS FOR OILVWELLS.

Specilication forming part of Lcttels Patent No. 6,485, dated February 2l, 1865.

To aZZ whom, it may concern:

Beit known that I, GEJRGE M. MowBRAY, of Titusville, in'the county of Crawford and State of Pennsylvania, have invented certain new and useful Improvements in Ejectors for Oil and other Wells; and I do hereby declare the following` to be a full and exact description of the same, reference being had to the accoml'ianying drawings, making part of this specification, in' which- Figures l, 3, 5, 7, 9, and I0 are vertical sect-ions illustrating my invention under varying forms as applied to ejectors with concentric tubes. Figs. 2, 4, 6, and 8 are plans ofthe nozzles illustrated in Figs. l, 2, 5, and 4, respectively. Figs. 1l, 12, and 13 are longitudinal sections illustratinglthe invention as applied to ejectors in which the tubes are not concentric.' Fig. 14 is a horizontal section at x x, Fig. 13. v

Similar letters of reference indicate corresponding parts in the several tigures.

The object of my invention is to economize the compressed air necessary to operate the apparatus known as an ejectorf7 used in Artesian or other wells for the purpose of raising liquids from considerable depths. For this purpose the nozzle ofthe blast-pipe or ventage ot' an ejector is so constructed that in lieu of one solid stream or one sheet of air the compressed air, when it issues to perform its work, may be separated and delivered in two or many streams, or so divided as to present the greatest possible operating-surface consistent with the velocity or power of the blast.

In order to raise the greatest possible quan tity of liquid with the least possible expenditure of compressed air, the apertures ot' the ejector are so shaped as to split the issuing compressed air into two or more iine streams of any desired form or forms upon a principle analogous to that employed in various descriptions of gasburners, the intention being to expose the largest possible surface of the issuing iiuid to contact with that which surrounds it.

Instead of the air-tube of the ejector terminating in a single conical nozzle or in an annular ring, I have found various perforations more eii'ective.

The following description will enable any one skilled in the art to which my invention appertains to fully understand and use the sllllG- Figs. 1 to 8, inclusive, show various forms of nozzles to be used with concentric tubes and requiring no contraction in the outer or discharge tube above the nozzle of the airtube. f

A represents the air-tube, provided at a with perforations, the sum of whose area may equal that of the tube itself.

B is a bulb, of conoidal or other form, screwed or otherwise secured to the tube A and surrounding the same above the perforathem will be directed upward within the surrounding iube. (Not here shown.) In Figs. 1 and 2 these apertures are simply perforations, which may be inclined, but are in preference made vertical. In Figs. 3 and 4 one circular range ofthe apertures is represented elongated vertically and horizontally. In Figs. 5 and 6 the apertures consist of horizontal,

and in Figs. 7 and 8 of vertical, slits. The remaining figures illustrate nozzles of various forms intended for use with tubes contracted above the nozzle. In each case the nozzle is of larger area than the tube, affording room upon its upper surface for apertures which will emit the air in vertical direction. In Fig.A

9 these apertures b b b surround the air-tube. In Fig. 1.0 a series of vertical tubes, b b b', are employed. In Fig. ll similar tubes b and in Figs. l2, 13, and 14 apertures b are shown in connection with a discharging or eleva-ting tube not concentric with the airtube. D in each case represents the discharge tube through which the liquid is elevated by the blast of compressed air or other fluids issuing from the nozzles and ascending continuously.

The apertures I) may, if preferred, be formed in a bulb or nozzle whose upper surface is a plane, and may extend over the edges and more or less down the sdes ot' the same, as convenience of mechanical construction or effectiveness in use may prove to be desirable.

Having thus described my invention, I Wish it distinctly understood that I do not restrict myself to any specic number or form of `perforations.

I do not claim, broadly, in this application a detlector for oil-ejectors'; neither do I claim the use of compressed air or steam for elevating liquids from Wells; lout What I do claim as my invention, and de- .sire to secure by Letters Patent, is the followmg:

1. In cjectors for elevating liquids and other substances from Wells, thc combination and arrangement of the following specified parts: rst, a vpipe through which to force air down into a Well; second, a surface at the bottom of such pipe to resist the air so forced down and give it an upwardmotion; and,third, the combination and arrangement of the plurality of pipes and passages, whereby to divide and distribute and conduct the air upward, so that it shall act upon the oil or other liquids and obstructing substances in its ascent, substantially as described.

2. The combination and arrangement ot' the between the inner surface of Which and the outer surface of the pipe through which air is to be forced down the liquid to be elevated is to ascend.

3. A bulb or inverted cup or nozzle, B, of any suitable form, screwed or otherwise attached to or formed upon the blast-pipe, and provided on its upper surface With a plurality of apertures to deliver the air in attenuated form, substantially as set forth.

4. In combination with the aforesaid pipe, closed at bottom, and bulb B, with a plurality of apertures, the cup C, adjustable in the relation to the said bulb, substantially as and for the purposes set forth.

5. In combination With a blast-pipe, A, the cup or bulb B, having upon its upper surface a plurality of perforations, slits, or tubes surrounding the said blastepipe, substantially as and for the purpose set forth herein.

The above specication for my improvement in ejectors for oil and other Wells signed this 9th day of November, 1864.

GEO. M. MOWBRAY.

Witnesses:

J AMES H. GRIDLEY, THos. N. CHAsE. 

